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11 cze 2004 · In this review, we (1) survey recent discoveries of pollen and stigma functions both before and after they make contact, and (2) address the great diversity in pollen and stigma structures across taxa, focusing on how they accomplish key tasks in pollination.
24 gru 2021 · The function of sigma is to receive pollen grains and germinate them. First, the stigma captures the pollen. Next, as the pollens stick to it, the dry pollen grains get rehydrated or germinated. The stigma then transmits hormonal signals to the pollen grains directing them to elongate into the pistil, forming a pollen tube.
1 lip 2018 · In the Ficus-fig wasp mutualism, stigmata have an additional, almost unknown, function by representing a physical interface for both plant and wasp reproduction. We used light and electron microscopy to compare the detailed morphology of the stigmata of nine Ficus species of different sections and with different pollination modes and sexual ...
28 cze 2008 · Stigma characteristics and morphology can be useful in taxonomic and phylogenetic studies, indicate relationships in stigma function and receptivity, and be valuable in evaluating...
This chapter aims to show the range of morphological variation in stigma types found throughout the angiosperms, to enable classification of stigmata into the major recognized groups, and to indicate the relationship between structure and function.
Pollen and stigma structure and function: the role of diversity in pollination. Plant Cell. 2004;16 Suppl (Suppl):S84-97. doi: 10.1105/tpc.015800. Epub 2004 Apr 9. Authors. Anna F Edlund 1 , Robert Swanson, Daphne Preuss. Affiliation.
1 sty 2003 · Information derived from the analysis of the stigmatic types in flowers of different ages, following the classification of immature, mature, and degenerated stigmas described before, showed how stigmas within a flower are not at the same stage of development.
